WO2005065977A1 - Soupape de purge - Google Patents

Soupape de purge Download PDF

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Publication number
WO2005065977A1
WO2005065977A1 PCT/EP2004/011194 EP2004011194W WO2005065977A1 WO 2005065977 A1 WO2005065977 A1 WO 2005065977A1 EP 2004011194 W EP2004011194 W EP 2004011194W WO 2005065977 A1 WO2005065977 A1 WO 2005065977A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
floating body
sealing element
valve seat
vent valve
Prior art date
Application number
PCT/EP2004/011194
Other languages
German (de)
English (en)
Inventor
Erhard Moses
Original Assignee
A. Kayser Automotive Systems Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by A. Kayser Automotive Systems Gmbh filed Critical A. Kayser Automotive Systems Gmbh
Priority to EP04790167A priority Critical patent/EP1697157B9/fr
Priority to US10/596,682 priority patent/US7770593B2/en
Priority to DE200450004683 priority patent/DE502004004683D1/de
Publication of WO2005065977A1 publication Critical patent/WO2005065977A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0753—Control by change of position or inertia of system
    • Y10T137/0874—Vent opening or closing on tipping container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2931—Diverse fluid containing pressure systems
    • Y10T137/3003—Fluid separating traps or vents
    • Y10T137/3084—Discriminating outlet for gas
    • Y10T137/309—Fluid sensing valve
    • Y10T137/3099—Float responsive

Definitions

  • the invention relates to a vent valve according to the preamble of claim 1.
  • Breather valves of this type are regularly set up for vertical installation in the wall of the fuel tank of a vehicle and are intended to provide a continuous connection between the interior of the tank above a fuel level and the exterior so that air can escape from the tank in the open position during filling and air can flow into the tank while fuel is being used to prevent a vacuum from building up.
  • a closed position of the valve should occur in the event of excessive filling of the tank or in the event of a significantly different position of the valve with respect to the tank, which signals an accident or a rollover of the vehicle, so that an uncontrolled escape of fuel must be prevented.
  • an automatic switchover of the valve should therefore be set up reliably between an open and a closed position. Characteristic vehicle movements caused by driving are also to be taken into account when operating the valve.
  • Such a valve is known for example from DE 696 01 135.
  • a floating body which interacts with an elongated, strip-like, flexible membrane, is arranged within a cylindrical housing having inlet openings on the bottom and an outlet opening on the top.
  • the floating body is axially movable within the housing between an open and a closed position of the valve and is supported on the bottom side by a spring. The movement of the floating body within the housing and thus the switching position of the valve is thus determined quantitatively by the buoyancy force acting on it and dependent on the fuel level, a mass force and the force of the spring.
  • the elongated or slot-like outlet opening forms on its side facing the floating body with its edge a valve seat for the membrane, which is in the closed position of the valve between the oblique to the Axis of the housing extending valve seat and a parallel to this extending opposite surface of the floating body is fixed.
  • the membrane is only attached to the floating body at one end. Due to the oblique orientation of the valve seat and the counter surface relative to the axis of the housing and thus the direction of movement of the floating body, the opening of the valve is characterized by a gradual detachment of the membrane from the valve seat.
  • a further vent valve for the fuel tank of a vehicle in which a floating body is axially movably arranged in a cylindrical housing provided with bottom inlet openings, which in turn is supported on the bottom side by a spring.
  • the housing is also provided with an outlet opening on the upper side, whose side facing the floating body forms an annular valve seat which is operatively connected to the membrane.
  • On the top of the float is a retaining element forming a cage for the membrane, which is characterized by fingers arranged uniformly distributed in the circumferential direction, the free ends of which partially overlap the membrane in the radial direction.
  • the fingers have different lengths in the axial direction of the housing, which are dimensioned with the proviso that when the float moves downward, through which the outlet opening is opened, the opening process begins at the location of the circumference of the outlet opening that is the shortest in the axial direction Finger is assigned, so that in turn there is a gradual opening process.
  • the valve seat extends in the same way as a counter surface of the floating body perpendicular to the axis of the housing.
  • the counter surface for the sealing element is not structurally compatible with the Floating body firmly connected surface but the side facing the sealing element acts as a support plate, which in turn is articulated in relation to the floating body.
  • the support disk will regularly differ in material from the point of view of its function from the sealing element and will consist of a relatively harder, less elastic material, preferably plastic, compared to the sealing element.
  • the sealing element on the other hand, experiences a supporting effect that stabilizes its shape and can accordingly consist of a relatively softer material that is adapted to fulfill a sealing function.
  • the housing and the floating body located therein can have a structure which is rotationally symmetrical with respect to a central axis, so that the floating body moves globally in the direction of the axis of the housing between the open and the closed position of the valve.
  • a design of the housing and the floating body that deviates from the rotationally symmetrical shape is equally possible.
  • the valve seat can accordingly be arranged in a plane extending perpendicular to the axis of the housing or to its longitudinal extent.
  • the features of claim 5 are directed to a further possibility of constructively realizing a cardanic articulation of the support disk while taking into account the detachment of the sealing element which begins at a point on the circumference of the valve seat during the opening of the valve.
  • one of the two swivel axes is characterized by an inclined position relative to the axis of the housing.
  • the other pivot axis extends perpendicular to the axis of the housing. In the case of a non-cylindrical housing, the same applies with regard to its longitudinal extent.
  • claims 7 and 8 are directed to improving the guide effect exerted on the movement of the support disk. Overall, these measures improve the reproducibility of the movements of the support disk, the reliability of the sealing effect and the smoothness of the movements mentioned.
  • Fig. 1 shows the essential components of the invention
  • Vent valve in the manner of an exploded view
  • FIG. 2 is an illustration of the vent valve of FIG. 1 in axial section in the
  • FIG. 3 is an illustration of the vent valve of FIG. 1 in axial section in the
  • FIG. 4 shows an illustration of the venting valve according to FIG. 1 in axial section at the beginning of a new opening:
  • FIG. 5 shows an illustration of a top view of the floating body corresponding to a viewing direction V-V of FIG. 1;
  • Fig. 6 is a representation of the installed state of the vent valve in section and in a partial view.
  • the vent valve consists of a cylindrical housing 1, which is closed at the top by a cover 2, which is preferably releasably inserted, and a globally likewise cylindrical floating body 3 which is arranged to be movable within the housing 1 in the direction of its axis 5.
  • the floating body 3 can be guided non-rotatably within the housing 1 with respect to its axis with known positive-locking means.
  • the housing 1 is provided on the top side with two mutually adjacent inlet openings 4 and in the cover 2 there is an outlet opening 6 which extends coaxially to the axis 5.
  • the latter ends on the outside in a connection piece 7 intended for connecting an outlet line.
  • the floating body 3 is supported on the underside in a manner known per se via a spring (not shown) on the bottom 1 'of the housing 1, the mode of operation of which will be explained below. It is provided with an annular cylinder-like chamber 8, which is open towards its underside 3 ' and extends essentially coaxially with the axis 5, on the closed chamber bottom 9 of which the spring is supported.
  • the upper side 3 ′′ of the floating body 3 is characterized by a ring-like arrangement of supporting fingers 10, which are essentially coaxial to the axis 5 and which are of identical design and which are formed in one piece with the floating body 3 in accordance with uniform peripheral distances and from which the rest is flat, protrude from the radial upper side with respect to the axis 5.
  • 11 denotes an approximately circular pyramid-shaped guide mandrel located in the center of the ring-like arrangement and protruding from the upper side 3 ′′ , the meaning of which will be explained in the following. In the exemplary embodiment shown, it has a smaller axial extent than the support fingers 10.
  • a support disk is designated by 12, which forms an annular step in the peripheral region, to which an annular flange 13 adjoins.
  • the support disk 12 has a central circular opening 14 into which a cylindrical projection 16 formed in one piece with a sealing disk 15 projects, through which the sealing disk is detachably connected to the support disk 12.
  • the sealing disc 15 overlays the
  • Support disc 12 on the side facing away from the floating body 3. With its ring step, the support disk 12 encompasses the outside of the arrangement of
  • Approach 16 protrudes.
  • the approach 16 also forms a continuous connection 16 ' between its end facing the guide pin 11 and its end facing the valve seat 19.
  • 17, 17 ' diametrically opposed to the floating body 3, designated for positive engagement of the said annular flange 13 certain angular retaining elements are designated, the axial lengths of which are dimensioned differently. This means that the available ones
  • Retaining elements 17, 17 ' accordingly differ. In any case, the entire system consisting of support and sealing washers 12, 15 is recreated
  • the outlet opening 6 is characterized by a relatively short pipe element 18, which extends coaxially to the axis 5 and projects into the housing 1, the free end 19 'of which forms a valve seat 19 for the sealing disk 15.
  • Such a vent valve is intended - as shown in FIG. 6 in detail - for installation in the top wall 20 of the fuel tank 21 of a vehicle.
  • the fuel tank is filled up to a permissible level 22, so that in the installation method shown, in which the housing 1 is located almost entirely within the tank, the inlet openings 4 only communicate with the head space 23 above the liquid.
  • Other types of mounting of the vent valve, in which the housing is located essentially outside the tank, are equally possible, and accordingly the inlet openings have to be placed differently. However, this will not be discussed in more detail below.
  • the position of the floating body 3 within the breather valve oriented vertically in the installed state is determined in accordance with the forces acting on it, namely a spring force acting on its underside 3 ' , a buoyancy force as a function of the liquid level within the housing 1 and one Mass force, said spring being selected in connection with the material of the float 3 with the proviso that in the open position of the valve shown in FIG. 2, which is regularly characterized by the lack of a buoyancy force, the spring force by the mass force of the float 3 including the parts associated with it is overcome and the floating body 3 sinks to the bottom 1 'of the housing 1.
  • the sealing disc 15 thus has no contact with the in this position
  • a radial guiding effect is also exerted by the support fingers 10, the radial outer sides of which are arranged at a short distance from the radial inner side of the annular step of the support disk 12.
  • the closing state of the vent valve shown in FIG. 3 is characterized in that the floating body 3 has moved, for example under the influence of a buoyancy force acting in addition to the spring force and the aforementioned mass forces, within the housing 1 in the direction of the cover 2, so that the Sealing disc 15 bears against the valve seat 19.
  • a reliable and reproducible sealing effect is provided.
  • the shoulder 16 is pressed into a sealing system against the guide pin 11.
  • the retaining elements 17, 17 ' have no function in this position of the valve.
  • the closing state of the vent valve can occur as a result of an overfilling of the tank or in the case of an orientation of the axis of the valve which differs substantially from the vertical, which is caused by corresponding vehicle movements, in particular vibrations, cornering, changing orientation, but also an accident, e.g. B. a rollover of the vehicle can be triggered.
  • the detaching process also initially leads to a lifting of the attachment 16 from the guide mandrel 11, with the result that, starting from the inlet openings 4, there is a continuous connection 16 ' via the attachment 16 to the outlet opening, which further facilitates the detaching operation.
  • Such a vent valve in particular its housing, can be arranged in the wall of the fuel tank, in this case form an externally applied structure or at least partially protrude into the tank.
  • a special holding device can also be considered, in which the housing is accommodated, which provides a connection to the named outlet opening, this holding device being held on a pump unit or another component or together with an independent line system on the inside of the Tanks is arranged.
  • the vent valve according to the invention provides a component which is intended for use in a fuel tank and which is distinguished by a simple structural design and which meets all operational requirements in a reliable and reproducible manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Float Valves (AREA)

Abstract

L'invention concerne une soupape de purge conçue pour le réservoir à carburant d'un véhicule. Cette soupape de purge comprend : un logement (1) qui comprend une ouverture de sortie (6) côté supérieur, et une ouverture (4) destinée à être reliée avec l'espace de tête d'un réservoir ; un corps flottant (3) qui est en appui sur le fond (1') du logement (1) par l'intermédiaire d'un ressort et qui est disposé de manière à pouvoir se déplacer en direction longitudinale. Le contour (19) de l'ouverture de sortie (6) forme un siège de soupape pour un élément d'étanchéité supporté par un disque de support (12), ce disque de support (12) étant articulé sur le corps flottant (3) à la cardan. L'élément d'étanchéité est disposé de manière à pouvoir se déplacer en fonction du mouvement du corps flottant (3) entre une position qui ferme l'ouverture de sortie (6) et une position qui libère cette ouverture de sortie. Grâce à ladite articulation du disque de support (12) sur le corps flottant (3), les changements de position qui sont entraînés par le fonctionnement du véhicule, par exemple des positions inclinées, n'altèrent pas la fonction d'étanchéité.
PCT/EP2004/011194 2003-12-23 2004-10-07 Soupape de purge WO2005065977A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04790167A EP1697157B9 (fr) 2003-12-23 2004-10-07 Soupape de purge
US10/596,682 US7770593B2 (en) 2003-12-23 2004-10-07 Bleed valve
DE200450004683 DE502004004683D1 (de) 2003-12-23 2004-10-07 Entlüftungsventil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003219920 DE20319920U1 (de) 2003-12-23 2003-12-23 Entlüftungsventil
DE20319920.0 2003-12-23

Publications (1)

Publication Number Publication Date
WO2005065977A1 true WO2005065977A1 (fr) 2005-07-21

Family

ID=34178095

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/011194 WO2005065977A1 (fr) 2003-12-23 2004-10-07 Soupape de purge

Country Status (5)

Country Link
US (1) US7770593B2 (fr)
EP (1) EP1697157B9 (fr)
DE (2) DE20319920U1 (fr)
ES (1) ES2291949T3 (fr)
WO (1) WO2005065977A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886367B1 (fr) * 2005-05-24 2008-12-26 Inergy Automotive Systems Res Clapet pour circuit de mise a l'air d'un reservoir a liquide
JP4869201B2 (ja) * 2007-10-02 2012-02-08 株式会社パイオラックス フロート弁装置
DE102011116941A1 (de) 2011-10-26 2013-05-02 Kautex Textron Gmbh & Co. Kg Entlüftungsventil
JP2015528090A (ja) 2012-07-12 2015-09-24 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ 複数のガイド脚を備えたフラッパバルブ
KR102130862B1 (ko) * 2012-12-24 2020-07-06 이턴 코포레이션 차량의 탱크용 밸브 조립체
DE102013201237A1 (de) 2013-01-25 2014-07-31 Veritas Ag Entlüftungsventil
DE102013013212A1 (de) * 2013-08-09 2015-02-12 Kautex Textron Gmbh & Co. Kg Universelles Abschaltventil
CN103470832B (zh) * 2013-09-23 2015-10-14 孙达立 一种溢流切断阀
KR101784622B1 (ko) * 2016-08-18 2017-10-11 주식회사 니프코코리아 연료탱크용 과충전 방지 도출밸브
WO2022174042A1 (fr) * 2021-02-11 2022-08-18 Bemis Manufacturing Company Ensemble soupape d'évacuation de gaz en cas de renversement
US20230025882A1 (en) * 2021-07-23 2023-01-26 Toyoda Gosei Co., Ltd. Fluid limit vent valve with splash prevention

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982757A (en) * 1988-10-20 1991-01-08 Toyoda Gosei Co., Ltd. Fuel cutoff valve
US5439023A (en) * 1994-04-11 1995-08-08 Kabushiki Kaisha Mikuni Shut-off valve for liquid fuel
US5755252A (en) * 1994-08-24 1998-05-26 G.T. Products, Inc. Control valve with two-stage shutoff and peel away opening action
US6035884A (en) * 1997-09-16 2000-03-14 Stant Manufacturing Inc. Liquid fuel baffle for vent apparatus
US6240950B1 (en) * 1998-08-27 2001-06-05 Stant Manufacturing Inc. Vapor control valve with bypass circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753262A (en) * 1987-02-06 1988-06-28 G.T. Products, Inc. Fuel system vent valve having roll-over closure with improved re-opening action for venting
JPH0814433A (ja) * 1993-12-29 1996-01-16 Kiyousan Denki Kk 止め弁の構造
IL112444A (en) 1995-01-25 1998-01-04 Raviv Precision Injection Mold Roll over vent valve
US5944044A (en) * 1996-05-10 1999-08-31 Stant Manufacturing Inc. Tank venting control system
US5950655A (en) * 1997-02-04 1999-09-14 G.T. Products, Inc. Mechanical seal ORVR system and control valve
US5960816A (en) * 1997-03-26 1999-10-05 G.T. Products, Inc. Adjustable length vent valve system for fuel tanks
JP3931291B2 (ja) * 2001-11-29 2007-06-13 豊田合成株式会社 燃料タンクの燃料流出規制装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982757A (en) * 1988-10-20 1991-01-08 Toyoda Gosei Co., Ltd. Fuel cutoff valve
US5439023A (en) * 1994-04-11 1995-08-08 Kabushiki Kaisha Mikuni Shut-off valve for liquid fuel
US5755252A (en) * 1994-08-24 1998-05-26 G.T. Products, Inc. Control valve with two-stage shutoff and peel away opening action
US6035884A (en) * 1997-09-16 2000-03-14 Stant Manufacturing Inc. Liquid fuel baffle for vent apparatus
US6240950B1 (en) * 1998-08-27 2001-06-05 Stant Manufacturing Inc. Vapor control valve with bypass circuit

Also Published As

Publication number Publication date
US20090107561A1 (en) 2009-04-30
US7770593B2 (en) 2010-08-10
EP1697157B9 (fr) 2008-01-02
DE502004004683D1 (de) 2007-09-27
DE20319920U1 (de) 2005-02-03
EP1697157B1 (fr) 2007-08-15
EP1697157A1 (fr) 2006-09-06
ES2291949T3 (es) 2008-03-01

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